Implementation of NSDateComponents.copy(with: zone)

[mamabusi]

No description provided.

[phausler]

this won't really work for any subclassers right?

let newObj = NSDateComponents()
newObj.calendar = calendar
newObj.timeZone = timeZone
newObj.era = era
newObj.year = year
newObj.quarter = quarter
newObj.month = month
newObj.day = day
newObj.hour = hour
newObj.minute = minute
newObj.second = second
newObj.nanosecond = nanosecond
newObj.week = week
newObj.weekOfYear = weekOfYear
newObj.weekOfMonth = weekOfMonth
newObj.yearForWeekOfYear = yearForWeekOfYear
newObj.weekday = weekday
newObj.weekdayOrdinal = weekdayOrdinal
if isLeapMonthSet {
    newObj.leapMonth = leapMonth
}
return newObj

[mamabusi]

@phausler Thank you for looking into this.

Wrote a code snippet to subclass NSDateComponents:

class Test: NSDateComponents { 
}

func test_subclass() { 
    let obj = Test()
    obj.year = 1987
    obj.month = 3
    obj.day = 17
    obj.hour = 14
    obj.minute = 20
    obj.second = 0
    let newObj = obj.copy(with: nil) as! NSDateComponents
    print(newObj.year)
    print(newObj.month)
    print(newObj.day)
}

Executing the above prints the year month and day as expected.

Are there shortcomings for subclassers that I am missing?

Thanks.

[mamabusi]

@phausler Made changes to the implementation addressing the review comments. Please have a look. Thanks!

[phausler]

@swift-ci Please test